---
id: CVE-2025-32908
title: A flaw was found in libsoup
summary: >-
  A flaw was found in libsoup. The HTTP/2 server in libsoup may not fully
  validate the values of pseudo-headers :scheme, :authority, and :path, which
  may allow a user to cause a denial of service (DoS).
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-115
published: '2025-04-14'
updated: '2026-06-25'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-32908'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2025:7505'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2025-32908'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2359343'
    label: secalert@redhat.com
  - url: 'https://gitlab.gnome.org/GNOME/libsoup/-/issues/429'
    label: secalert@redhat.com
  - url: 'https://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/451'
    label: secalert@redhat.com
tags:
  - nvd
epss: 0.00597
epssPercentile: 0.47237
ingestedAt: '2026-06-26T16:43:13.593Z'
---

## Overview

A flaw was found in libsoup. The HTTP/2 server in libsoup may not fully validate the values of pseudo-headers :scheme, :authority, and :path, which may allow a user to cause a denial of service (DoS).

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.